When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Bacterial cellular morphologies - Wikipedia

    en.wikipedia.org/wiki/Bacterial_cellular...

    Bacterial cellular morphologies are the shapes that are characteristic of various types of bacteria and often key to their identification. Their direct examination under a light microscope enables the classification of these bacteria (and archaea). Generally, the basic morphologies are spheres (coccus) and round-ended cylinders or rod shaped ...

  3. Morphology (biology) - Wikipedia

    en.wikipedia.org/wiki/Morphology_(biology)

    Morphology of a male skeleton shrimp, Caprella mutica Morphology in biology is the study of the form and structure of organisms and their specific structural features. [1]This includes aspects of the outward appearance (shape, structure, color, pattern, size), i.e. external morphology (or eidonomy), as well as the form and structure of internal parts like bones and organs, i.e. internal ...

  4. Bacterial cell structure - Wikipedia

    en.wikipedia.org/wiki/Bacterial_cell_structure

    The cell wall of some Gram-positive bacteria can be completely dissolved by lysozymes which attack the bonds between N-acetylmuramic acid and N-acetylglucosamine. In other Gram-positive bacteria, such as Staphylococcus aureus, the walls are resistant to the action of lysozymes. [4] They have O-acetyl groups on carbon-6 of some muramic acid ...

  5. Bacterial taxonomy - Wikipedia

    en.wikipedia.org/wiki/Bacterial_taxonomy

    Bacterial taxonomy is the classification of strains within the domain Bacteria into hierarchies of similarity. This classification is similar to that of plants , mammals , and other taxonomies. However, biologists specializing in different areas have developed differing taxonomic conventions over time.

  6. Human microbiome - Wikipedia

    en.wikipedia.org/wiki/Human_microbiome

    Graphic depicting the human skin microbiota, with relative prevalences of various classes of bacteria. The human microbiome is the aggregate of all microbiota that reside on or within human tissues and biofluids along with the corresponding anatomical sites in which they reside, [1] [2] including the gastrointestinal tract, skin, mammary glands, seminal fluid, uterus, ovarian follicles, lung ...

  7. Microbial genetics - Wikipedia

    en.wikipedia.org/wiki/Microbial_Genetics

    Bacteria have been on this planet for approximately 3.5 billion years, and are classified by their shape. [9] Bacterial genetics studies the mechanisms of their heritable information, their chromosomes, plasmids, transposons, and phages. [10] Gene transfer systems that have been extensively studied in bacteria include genetic transformation ...

  8. Bacteria - Wikipedia

    en.wikipedia.org/wiki/Bacteria

    Historically, bacteria were considered a part of the Plantae, the plant kingdom, and were called "Schizomycetes" (fission-fungi). [169] For this reason, collective bacteria and other microorganisms in a host are often called "flora". [170] The term "bacteria" was traditionally applied to all microscopic, single-cell prokaryotes.

  9. Cell (biology) - Wikipedia

    en.wikipedia.org/wiki/Cell_(biology)

    The cell wall consists of peptidoglycan in bacteria and acts as an additional barrier against exterior forces. It also prevents the cell from expanding and bursting from osmotic pressure due to a hypotonic environment. Some eukaryotic cells (plant cells and fungal cells) also have a cell wall.